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The tensile test is one of the most common and important test methods to evaluate the material properties.
Various material test samples will reflect different physical properties and mechanical properties during the tensile test.
Special attention shall be paid to prevent the stress concentration from affecting the test result due to the poor surface roughness on the test sample.
Many factors influence the decarburization, such as the chemical composition of the steel material, heating temperature, press quenching time and heating atmosphere.
In addition to the routine properties test requirement, there are some more special properties test requirements, such as the three-point bending test and the bumper impact test etc..

Their investigation led them to the conclusion that the process factors significantly affect the response.
They employed welding voltage, welding speed, and welding current as process factors in their investigation.
Eivani, An experimental investigation on the effect of gas tungsten arc welding current modes upon the microstructure, mechanical, and fractography properties of welded joints of two grades of AISI 316L and AISI310S alloy metal sheets, Mater.
[7] Yu Su, Wenya Li, Xinyu Wang, Tiejun Ma, Liang Ma, Xiaomu Dou, The sensitivity analysis of microstructure and mechanical properties to welding parameters for linear friction welded rail steel joints, Mater. 
Gobalakrishnan, Influence of TIG welding processing parameters on mechanical properties of austenitic stainless steel using Taguchi analysis, Mater.

Gdoutos [5] argues that the crack opening mode is covered by the KI SIF for mode I, while the crack sliding mode is affected by the mode II stress intensity factor, KII, and the ripping mode is affected by the mode III stress intensity factor, KIII.
Table 2 presents the reinforcement property of each mat type.
It was observed that for all E-glass fiber laminate cases studied, the stress intensity factors become higher as the crack length, i.e., a/W, increases.
Miscchke, Mechanical Engineering Design.
Liu, Determining stress intensity factors of composites using crack opening displacement, Composite Structures, 81, 2007, pp. 614–621 [18] Janssen, M., Zuidema, J. and Wanhill, R., Fracture Mechanics.

Effects of Combined Addition of Cr3C2 and NbC on Microstructure and Properties of Cemented Carbides Prepared by WC-Co Composite Powder Aimin Jianga, Quan Li and Fengjie Yang Chongqing Academy of Science &Technology, China a44290159@qq.com Keywords: Combined grain growth inhibitors, WC-Co composite powder, Microstructure, Mechanical properties.
When the WC grain size is reduced to submicron or nanometer scales, the WC-Co composites possess improved mechanical properties and wear resistance, compared to their coarse-grained counter parts.
The mechanical properties however deteriorate at higher NbC contents owing to the formation of coarse and brittle (Nb,W)C grains[13-16].
The smaller WC grain size of composites with Cr3C2/NbC could be an important factor affecting the mechanical properties.
This phenomenon is related to the formation of cobalt pools, which result in deficient WC in the cobalt pool and consequently affect the mechanical properties negatively.

The properties of PMCZ SiGe single crystal with different Ge concentrations were discussed.
The properties such as impurity distribution, mechanical property and infrared optical performance of PMCZ SiGe single crystal with different Ge concentrations were studied.
Infrared Optical Properties.
Table 2 Measure results of mechanical strength Mechanical Property.
Above all factors result in remarkable increase in mechanical strength of CZ-Si (Ge-doped).

Fundamental mechanical characteristics were evaluated prior to the bond fracture test.
The behavior of strengthened structures will be a composite action of concrete and FRP materials, and will be affected by various factors including mechanical properties of FRP, size and ratio of strengthening, and types of adhesive [3].
The basalt fibers used had about 10µm in diameter and primary chemical composition and mechanical properties are addressed in Table 1 and 2, respectively.
(a) rolled basalt fiber sheet (b) closed view of woven basalt fiber sheet Fig. 1 Basalt fiber sheets as a concrete structure strengthening material Table 1 Primary chemical compositions Table 2 Mechanical properties SiO2 Al2O3 Fe2O3 CaO MgO 49 14 12 9.5 5 Diameter (µm) Density (g/cm3) σtensile (MPa) E (GPa) εultimate 10.6 2.6 992.4 7.6 2.56 (a) schematics of specimen (b) specimens under curing Fig. 2 Specimens for bonding strength test Analysis of Discussions From the tests, ultimate applied load was measured and failure mode was observed.
In addition, rather than the overall bonding area, the aspect ratio of bonding area was more important factor affecting the bonding strength.

Low-calcium fly ash-based geopolymer concrete: long-term properties. 
Effect of mechanical activation of fly ash on the properties of geopolymer cured at ambient temperature. 
Effect of mechanical activation of fly ash on the properties of geopolymer cured at ambient temperature. 
Factors affecting the suitability of fly ash as source material for geopolymers. 
Influence of calcium compounds on the mechanical properties of fly ash geopolymer pastes.

Now, there was usually using discrete way to analysis the mechanical properties of side-loading forklift truck lifting system.
But, this way consumed much times and works and also it could not reflect the entire mechanical properties of the lifting system.
So, in this article, we used the way of defining contact sets to achieve a comprehensive analysis of the mechanical properties of the lifting system, based on COSMOSWorks.
These holes diameter were usually small, and didn’t affected the mechanical properties of lifting system.
Furthermore we overall grasped the mechanical properties of lifting system, and ensured the safety and reliability of lifting system.

The main factors affecting shear strength are interface frictional resistance and adhesive stress from material of waterproof layer.
Collop [1] describes the laboratory measurement of shear interface properties between asphalt layers using the Leutner test.
The bevel shear experiment, direct shear experiment, and direct tensile test on adhesive layer by Xu Wei [6] are aimed to study how different factors influence shear experiment.
Qinghua Zhou and Qinwu Xu [7] investigates the adhesion properties of WM under the influences of critical factors including construction temperature, structure characteristic, material content and use of subcoat.
The Research on The Structure Mechanical Properties of The Tied Arch Bridge [M]: Master dissertation, Changsha University of Science &Technology, 2005

PFC2D numerical simulation study of interfaces characteristics for prestressed anchor cable under cyclic loading Jianxiang Feng1,a, Sifeng Zhang2,b, Jinsheng Du1,c 1Beijing Jiaotong University, Beijing 100044, China 2Shandong Jianzhu University, Jinan 250101, China afjx80242209@163.com, bsddxzsf@163.com, cjshdu@bjtu.edu.cn Keywords: Cyclic loading; Prestressed anchoring structure; Inner anchoring section; Failure developing law; PFC2D numerical simulation Abstract: Affected by various external factors, the tensile force of prestressed anchorage structures presents loop and fluctuation characteristics in practical engineerings, which will cause severe impact on the inner anchoring section of the prestressed anchorage structures.
Affected by various external factors, the tensile force of prestressed anchorage structures presents loop and fluctuation characteristics in practical engineerings, which will have severe impact on the inner anchoring section of the anchor cable [2].
The actual materials were simulated by circular or alien discrete particles medium units, whose translational and rotary equation determining the coordinate and speed variation characteristics of particles at a certain moment, and through the movement and interaction of which, the physical and mechanical properties of actual materials were simulated.
The difference of materials properties can be realized through defining the coefficient of friction and contact adhesive strength of materials particles.
Slope rock-mass anchorage properties study and engineering application[D].